Industrial cord treating apparatus



May 26, 1953 R. R. AMBLER 2,539,485'

INDUSTRIAL CORD TREATING APPARATUS Filed June 29, 1949 2 Sheets-Sheet l .I :Z i7 2 May 26, 1953 R. R. AMBLER INDUSTRIAL CORD TREATING APPARATUS 2 sheets-sheet 2 Filed June 29, 1949 Patented May 26, 1953 INDUSTRIAL CORD TREATINGTAPBARATUS;

Kobert'R Ambler', Akron, OliiLas/signor' to The F: Goodrich Company; New York," Nl." Y., a corporation off-Nwff-Yorkw ApplicationJune 29, 1949, Serial No..102121.

Tiiissinyention .relates to. cordl. treating. appa? ratus-andiis..especially usefllin theftreatme'nt of industrial. cordl ofV rayon, cotton, nylon" or other snrinkable materialior use inbeltsor other reim forced.. rubber products. y

Irtl'e. manufacture offproducts of rubber-like materialhaving. cord' reinforcing ,m'emkiers .it lias leenound desirable to coat. 'tn'e cords Withfa liquidadpted .tol provideincieased. adhesion to the'.rubber-liliecmaterial'andto diy `the cord'So treated..

ObjectsLofftlie. present invention as tojprovide for controlling"tensionof"cordfprogressivelf in' accordanc'e.with` its conditiomto' provide for progressively, supporting' andidryiiigthe cord while reducing.tension'tiereon in a controlldmanner', to" provide fri'reducing vtrie' `tension gradually in accordance with tli'e condition of.' dryness of tlie cord; .to provide adjustment of vthe tension reducing support; andtcprovide for electrically heatin'g trie support'iires'pec'tive of'its' adjustment;

Tliese and other objectswillappear' froml the following description' and" tlie accompanying drawings:

Of trie. drawings;

Fig; 1';i's"a fontelevation', partly brokenavvay avrrcpartl'y` insection, of apparatusconstructed' in accordance" with and embodying the invention.

Fig: 3" a cross-sectional ViewAv thereof', taken on {unete-3i ofiFg. l.

Fig.' 4is" a`- longitudinal sectional" view ofthe Ruwer roher.

Fig; 5L is arv c'rossescctional View of the" lower rollrtak'emonline re-'lofiFig.` 4';

Fig; oiisan axial' sectional Viewof' the uppjer roller:

Fig; 7 isca sectionalvi'ew'of the upper roller taken'vonlinelT-T ofE Figi 6:

Referring;v to' tne/ drawings; the numeral I0 designates a"d dryingl cabinet which supports bear'- ings I l, l2 in Whiclia shaft-'I 3iis rotataloli7 mountedi on` a`l` horizontal axis:A 'Iihecabinet also supbearingsv It',` I5' inf- Whicl afshaftV l1 is'v ro"- tata'blyrnounted' parallelitoandabove sliaft |"3 Asmot'orf f8rv connected to -aspeed-f reducer` I ilS is mountedion aibraclet Z'Ufsupp'ortediby'thecabinet andi drives #through a" sprocket* 2iI andv chain 2'2` a sprocketZBnXedltolshat IT. A conicalroller' isf-walsosfixedto shaft I1'. second'lconical roller 28% isf mountedl -loelow'arvzrller 25" and with" its axis parallel to the axis of rollerl 25;

For heatingr roller' 26Y whichAk is hollow; as seen maries: Alifand, resistance heating units30ar'e 2. mounted on the inner wail of the rollerand are electricallyconnectedto collector rings ilfoutside the: cabinet., Brushes. 31` Contact the.A collector rings and Jprovide ,rior connecting the heatinggele-y mentsto asourceofl electricity. The roller is neaterivvhile it-.rotates by current supplied thereto throughfthe collector. rings and' brushes.

The/upperrolll is also taperedin the same directionasthelower roller. It is hollow and'jof adjustable.. taper. Fortliis purpose; it has' a staftonary head 35 i'iirecl to shaftV Il" and a shell'36 secured .there-to at itssmall end. and splitaxially frornthehead to its. large end atl intervals about. its, circumference to provide a, series of stavestl.. Atitneopen end'oi' 'the Snell; thefree ends, oftie staves 3T are supported.v by a conet 38 axially adjustable along shai't Il;

Flor' resilientlyj holding the' free ends oi" the stav'es` against the cone' 33'; a coil: springring '4"0 is .seatedin an. annular groove el' about theopen end" ci snell' 36.'

For' adjustingtlieH correA alongl tilev shaft, the cone iscount'erbored'and internally threaded' at itslarger end;,a's.at t2; While its small endengagesia feather key' i3 to` prevent turning ofthe c'on'erelativeto the snai t. .An-outwardly threaded bushing 'W' extends Wi'tnirr theA counterbored portion. of'tlie cone andengages'tne threads 42 o1" tliecone: The bushing rlhas aradiallange l5 havinggspanner holes le'ior receiving a wrench ii:v rotating it;

Alcollar 4l is .fixed to. shaft l adjacent flange 45. The. arrangement issu'ci that byv rotating bushing, li'laboutshaft" Il in one dirccti0r1..the cone.. 38.. is forced into the open end of shell 36 spreading'. the staves il and increasing4 the taper of,I thecona. and by. turning bushing, 4.4 inthe opposite directioznftlie cone 32% is. retracted and taper.. of the. rollen decreased.

lrovision.mayy be. made also for heatlngroller 25Qinthemanner of roll.- 2t. and for this purpose, collector rings 5t. are mountedv onshaft Il and heating, elements. (not shown)l may be. mounted on staves 3'1 and electrically connected thereto. Brushes 5|. may beprovided to supply. current to title rings.

For. guiding the cord, roller 25 hasaxially spaced. apart circumferential groovesv 52 to supportreaches .of cord inspaced apartrelatifonand roll 2t .may be similarly grooved. desired for further. guiding ofv the. cord, although this is not necessary.

Tliecord' is drawn into the cabinetand. eng-,- ter'stlietrstlgroove at. thev large end. or thelower roller 2B and travels about the roller and to the first groove in the large end of the upper roller 25. From there the cord passes back to the second groove of the lower roll and back and forth about the rolls in similar manner until it reaches the last groove where it travels from the cabinet. As the cord passes about the rollers the taper of the rolls permits progressive control of the condition of tension because of the reduced diameter of successive grooves. By adjustment of the taper of roller the amount of tension on the cord may be nicely controlled. The adjustable feature of roller 25 provides a convenient means of accurately regulating the dimensions of the helical convolutions of the cord with respect to the particular shrinkage of the oord and further this feature is very useful where cords of different materials having different shrinkage charac teristics are treated in this equipment.

Variations may be made without departing from the scope of the invention as it is dened by the following claims.

I claim:

1. Apparatus for progressively controlling the tension on industrial cord in conjunction with a heat treatment of the cord, said apparatus comprising a pair of conical rolls arranged for rota- 'tion about parallel axes, said rolls being tapered in the same direction and adapted for guiding the cord in a series of reaches about the rolls from the large ends to the small ends of the rolls, and one of said rolls having means for adjusting its taper.

2. Apparatus for progressively controlling the tension on industrial cord in conjunction With a heat treatment of the cord, said apparatus comprising a pair of parallel shafts, means xed to said shafts and rotatable therewith having circumferential guiding grooves for cord at spaced apart intervals therealong, said guiding grooves being of progressively decreasing diameter from one end of a shaft to another and the grooves of one shaft decreasing in the same direction as the grooves of the other, means for driving one of said shafts to feed a cord about said shafts in a plurality of convolutions about both shafts from the larger grooves to the smaller grooves thereof, heating units carried by one of said shafts, and means for changing the ratio of decrease of diameter of the grooves of one of said shafts.

3. Apparatus for determinately and progressively controlling tension on industrial cord in conjunction with a heat treatment of the cord, lsaid apparatus comprising a pair of rolls rotatable about axes extending in the same general direction for supporting and advancing a cord vhelically coiled about the rolls as a group, the girth about the pair of rolls at the position of initial engagement of the cord with the rolls being greater than the girth about the rolls at the position of final contact of the cord with the rolls, and one or' the rolls having means for adjusting it to change 'the decrease in girth from the position of initial engagement of the cord to the position vof nal contact to permit determinate contracwith the rolls being greater than the girth about the rolls at the position of final contact of the cord with the rolls, and at least one of said rolls having means for adjusting it to change its conical angularity to permit determinate contraction of the cord.

5. Apparatus for determinately and progressively controlling tension on industrial cord in conjunction with a heat treatment of the cord, said apparatus comprising a pair of rolls tapered throughout their lengths in the same direction and rotatable about axes extending in the same general direction for supporting and advancing a cord helically coiled about the rolls as a group, said rolls having axially spaced-apart circumferential grooves for engaging a series of helical convolutions of the cord trained about said rolls as a group, and the girth about opposite grooves of the pair of rolls decreasing progressively from the position of initial engagement of the cord with the rolls to the position of nal contact of the cord with the rolls to permit contraction of the cord, one of said rolls having means for adjusting its taper to accommodate the desired contraction of the cord.

6. Apparatus for determinately and progressively controlling tension on industrial cord in conjunction with a heat treatment of the cord, said apparatus comprising a pair of rolls rotatable about axes extending in the same general direction i'or supporting and advancing a cord helically coiled about the rolls as a group, said rolls having axially spaced apart circumferential grooves for engaging a series of helical convolutions oi' the cord trained about said rolls as a group, and the girth about opposite grooves of the pair of rolls decreasing progressively from the position of initial engagement of the cord with the rolls to the position of final contact of the coro'. with the rolls to permit contraction of the cord, and means for adjusting at least one o1' the rolls to change the decrease in girth.

7. Apparatus for determinately and progres` sively controlling tension on industrial cord in conjunction with a heat treatment of the cord. said apparatus comprising a pair of rolls rotatable about axes extending in the same general direction for supporting and advancing a cord helically coiled about the rolls as a group, said rolls having axially spaced-apart circumferential grooves for engaging a series of helical wnvolutions of the cord trained about said rolls as a group, and the girth about opposite grooves of the pair of rolls decreasing progressively from the position of initial engagement of the cord with the rolls to the position of final contact of the cord with the rolls to permit contraction of the cord, means on and rotatable with at least one of said rolls for heating the roll, and the other of said rolls being tapered uniformly from end to end thereof and having means for adjusting the angle of its taper to accommodate the desired contraction of the cord.

8. Apparatus for progressively controlling the tension on industrial cord in conjunction with a heat treatment of the cord, said apparatus comprising a pair of parallel shafts, means fixed to said shafts and rotatable therewith having circumferential guiding grooves for cord at spacedapart intervals therealong, said guiding grooves being of progressively decreasing diameter from one end of a shaft to another and the grooves of one shaft decreasing in the same direction as the grooves of the other, and means for driving one of said shafts to feed a cord about said shafts in a plurality of convolutions about both shafts from the larger grooves to the smaller grooves thereof, one of said means xed to a shaft comprising a plurality of adjustable staves at the grooved surface, and means for adjusting said staves to change the ratio of decreasing diametei` of the grooves.

ROBERT R. AMBLER.

References Cited in the file of this patent UNITED STATES PATENTS Name Date Fredenburgh Apr. 26, 1904 Number Number Number 

